— 162 — 



Plate XIX. 



Zingiber Ottensii Val. 

 Fig. 1. Spike with a bud. 



2. Bract from the inner side, showing the infiexed margin. 



3. Bract from the top. 



4. 5. Flower. 



6. Labellum and Staminodes explained. 



7, 8. Base of the leaf. 



Plate XX. 



Zingiber gramineum Bl. (Fig. 1 — 14). 

 Z. Casmmunar Roxb. (Fig. 15). 

 Fig. 1. Terminal spike, fruiting, forma genuina. 



2. Lateral spike, young forma genuina. 



3. Forma robusta, lateral spike. 



4. Bract. 



5. Bracteole. 



6. Calyx. 



7. 8. Petala. 



9, 10. Labellum, (staminodes connate), 



11 — 13. Capsula. 



14. Labellum of forma robusta, explained. 



15. Zingiber Cassumunar. Labellum and Staminodes. 



Plate XXI. 



Zingiber Loerzingii. 

 Fig. 1. Flower enclosed in the bract and bracteola (laid open, from 

 preserved specimen). 



2. Fl. laid open and dried (stamen crumpled). 



3. Calyx. 



4. 5. Capsule, young, preserved on alcohol. 

 6, 7. Bracts. 



8. Capsule of Z. gramineum. 

 9—11. Capsule of Z^ aromaticum. 



12. Seed of Z. Loerzingii. 



Plate XXII. Infi, of Curcuma domestica Val. from a very poor, rather 

 abnormal, specimen grown from rhizomes of „kunyit" sent from 

 Singapore, Fl. Sept. 1917. The figure is rather different from the normal 

 type, by the very short spike, and the living spike is peculiar by the 

 greenish white tinge of the coma. The flowers are however quite 

 similar to that of the Java specimens, even in the characteristic spurs, 

 and the very long free parts of the bracts are typical. 



